Macroscopic X-ray computed tomography aided numerical modelling of moisture flow in sawn timber

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Fältnamn	Indikatorer	Metadata
000		03768naa a2200445 4500
001		oai:DiVA.org:ltu-92595
003		SwePub
008		220821s2022 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
009		oai:DiVA.org:uu-483549
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-925952 URI
024	7	a https://doi.org/10.1007/s00107-022-01867-72 DOI
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4835492 URI
040		a (SwePub)ltud (SwePub)uu
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Florisson, Sarau Uppsala universitet,Luleå tekniska universitet,Träteknik,Applied Mechanics, Uppsala University, Uppsala, Sweden,Tillämpad mekanik4 aut0 (Swepub:uu)sarfl401
245	1 0	a Macroscopic X-ray computed tomography aided numerical modelling of moisture flow in sawn timber
264		c 2022-08-17
264	1	b Springer,c 2022
338		a print2 rdacarrier
500		a Validerad;2022;Nivå 2;2022-11-29 (hanlid);Funder: Swedish wood industry; Gabrielssons foundation
520		a Mathematical models are essential for the development of schedules for the air-circulation drying of timber in Swedish sawmills, but earlier models have been shown to be conservative leading to longer drying times than necessary. In the current study, macroscopic (macro) X-ray computed tomography (CT) has been used in both the development and validation of a finite element (FE) model, to enable the macro-CT aided FE modelling of the nonlinear transient moisture flow in wood. The model uses more advanced theory than has previously been used in Swedish sawmills, by incorporating a surface emission coefficient to simulate the surface resistance to moisture flow. A single piece of Norway spruce [Picea abies (L.) Karst.] timber was subjected to that part of a traditional kiln-drying schedule, which is associated with diffusion-driven moisture transport. The incorporation of macro-CT data into the FE model resulted in a more realistic representation of the board’s geometry, the initial moisture state, and the definition of material parameters. It also led to a better simulation of flow speed and moisture gradient, especially the asymmetric MC development within the cross section throughout the drying process.
650	7	a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Trävetenskap0 (SwePub)401052 hsv//swe
650	7	a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Wood Science0 (SwePub)401052 hsv//eng
650	7	a TEKNIK OCH TEKNOLOGIERx Materialteknikx Annan materialteknik0 (SwePub)205992 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Other Materials Engineering0 (SwePub)205992 hsv//eng
653		a Träteknik
653		a Wood Science and Engineering
700	1	a Hansson, Larsu Ocean Operations and Civil Engineering, Norwegian University of Science and Technology, Ålesund, Norway4 aut
700	1	a Couceiro, José,d 1983-u Luleå tekniska universitet,Träteknik4 aut0 (Swepub:ltu)joscou
700	1	a Sandberg, Dick,d 1967-u Luleå tekniska universitet,Träteknik4 aut0 (Swepub:ltu)dicsan
710	2	a Luleå tekniska universitetb Träteknik4 org
773	0	t European Journal of Wood and Wood Productsd : Springerg 80:6, s. 1351-1365q 80:6<1351-1365x 0018-3768x 1436-736X
856	4	u https://doi.org/10.1007/s00107-022-01867-7y Fulltext
856	4	u https://uu.diva-portal.org/smash/get/diva2:1691703/FULLTEXT02.pdfx primaryx Raw objecty fulltext:print
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-92595
856	4 8	u https://doi.org/10.1007/s00107-022-01867-7
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-483549

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Av författaren/redakt...: Florisson, Sara; Hansson, Lars; Couceiro, José, ...; Sandberg, Dick, ...

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